WPA Opinion Research found that 66 percent of all adults – including 55 percent of Millennials – say they oppose or strongly oppose the “government forcing schools, businesses, and non-profit organizations to open the showers, changing facilities, locker rooms, and bathrooms designated for women and girls, to biological males and vice versa.”

The survey, which polled 1,012 adults, found that the opposition was strongest among Republicans: 84 percent opposed, and 75 percent “strongly disapprove” of the policy.

Surprisingly, 46 percent of Democrats oppose the policy, while only 45 percent support it.

Similar numbers of men and women oppose the measure, WPA found.

The only significant difference in poll results came across generations. Baby Boomers were most likely to oppose the policy (75 percent), followed by Generation X (63 percent), then Millennials (55 percent).

Still, a majority of people in every segment interviewed say they oppose efforts to require businesses and other public accommodations to ignore biological gender in public areas where one may be exposed to nudity.

The results of the new poll confirm the results of numerous other polls across the country since the issue exploded into the public consciousness. A Rasmussen poll last month found that voters in the swing states of Ohio, Florida, and Pennsylvania oppose transgender “bathroom bills” by an average of 14 percentage points. Citizens in Utah reject transgender public accommodations laws by 17 points. A national poll in May found more Americans oppose cross-gender or unisex restroom policies, which come about when "gender identity" is added as a protected class to civil rights legislation alongside race, sex, and religion.

"President Obama has ignored the repeatedly expressed concerns of parents and school officials over the privacy and safety of students,” said Tony Perkins, president of Family Research Council Action, FRC's political arm, which commissioned the poll. “In the pursuit of his radical agenda, the president has trampled upon the boundaries of his constitutional power. If the White House can dictate the policies for every school locker room, shower, and bathroom in America, what could possibly be beyond its reach?”

The WPA poll is released just as billionaire Paul Singer has made clear he will force a public showdown with GOP delegates during next week's Republican National Convention over the issue of transgender accommodations. The party's platform committee, which has met for the last two days and includes Perkins, has adopted a measure opposing the Obama administration's reinterpretation of civil rights and educational laws on restroom and shower use.